cifri annual report 2007- 2008 - Central Institute of Brackishwater ...

CIFRI ANNUAL REPORT 200 7- 2008
Invcstigatit~ns uridcr the project was aimed at
tleveloping a niodcl for assessment of w;ltcr quality
using rciiiotc sensing imagery. Water and soil clu:~lity
wcrc rccordcd from 1i)urtccn selected watcr i)odics ol'
two districts namely I'uruli:~ :\lid Hankura in West
Hcngal during pust-monsoon. 'l'hc p:~r:~riictcrs ol'~tudy
wcrc Tcmpcrnturc. 'Tr;~nsparcncy. Dissolved ()>cygen,
. ,
Sp. Conductivity. pH. Total tlissolvcd Sol~d, I'ot;~l
Alk;llinity, Frcc C'O,. chlorinity, Salitrity, NO,, 'fatal
Nitrogen. PO,, Sulpliate. Silicntc, hardness, Ca, Mg.
Gross I'rin1;iry Production, Net Primary Pruduction
:rnd Kcspiration. C>bsc~vations on soil characlcristics
wcrc madc on sand, silt. clay, pH, sp. C'oricluctivity,
org:iiiic C'artrnn. rot:ll Nitrogen, ;i\lailnblc I'Iiospll;itc,
Free CaCO, arid avi~ilablc-N.
svstcm at Alla11:thad ccritrc. Conimotl carp is tlic
iiinior contributor to thc fishcry during 2007. 'Tlic tot;11
catch from Siidiapur h;~s hccli c\lorkcd out ;II I 15.% t
and fi-om I)araguii,j it has hcc.11 wor-kcd out at 30.02 1.
'The dat;~ collcctcd at tlic ccntrcs. Allaliabatl i~rld
(i~i~~ahati 11;ivc heen coliipilcd and stored in tllc
d:~tabnsc for liltl~rc usc.C;~tcl~ c1;1t;1 ha\~c \>cc~~ utillsctl
for the creation nf'(icographic:~l Itili~rm:~tion Systctnl
((;IS) li)r the easy storage and rctric\,iil.
Dc~~*clol~rttcrtt of' s(!/~IvNI'~ : A s~f't\\~;~rc 111od~1l~ I1;1s
hccn tit.vcloped usillg Visi~nl3:lsic and Access ;is hack
cnd. lJsirig key and illi;igcs and slictclics. the ~oli\\~ar.c
will idcritil'y orders atit1 lii~nily of'tlic lish. Idclit~l)'illg
gciii~s and spcci;~l imagcs is under p~.occss.
Furtlicr 'T'opographical slicctx ol'Mvlurugama wiltcr
shed in tlic block .Ih:ild:i , Purulia district wcrc gcorcfcrenccd
and ~nosaiccd fix the first second and third
orticr strt.:~ms . Ilatabase has hccti attached to vcctor
filc related to villages ol'thc watcrshcil.
Thc mapping of watcr bodies with area above 10
ha had bccn cumplctcd in the stntc of Madhya I'rudcsh
with post monsoon data.
I)c\.tbloptl~c.rlt ;~nd stirricl;ir.i., ,z:bfior~ oi' tla t ;rl);rw or)
(;IS pl:iti'orrt~ for c;lpt~~r-c fisl~(~rir.s
Fish Catclt data : Mor~thly data on fish catch arc
recorded at Guwahati for Rrahamaputra river. Thc
species -, like A. morar and C. cat10 are the dominant
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1
species in thc catch. Thc estimated total catch is
worked out at 259.56 tat the centrc during 2007.
. -.- .. . . .. . a The catch data are rccordcd from the Ganga river
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Fig. 9 : Water bodies of West Bengel on web pace